apache / apache/lucene

queryparse throws different exceptions when clone() fails

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#12,240 0 comments 0 reactions 0 assignees View on GitHub
type:bug
Dominant language
Java
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Description

### Description

I find that my code fails to handle the failures of clones, when clones happen in queryparser.

I notice that lucene hides CloneNotSupportedException, and throws RuntimeException. For example, CharArrayIterator has the following code:

`public CharArrayIterator clone() {
try {
return (CharArrayIterator) super.clone();
} catch (CloneNotSupportedException e) {
// CharacterIterator does not allow you to throw CloneNotSupported
throw new RuntimeException(e);
}
}`

Due to the above observation, my code catches RuntimeException, and analyzes its embedded CloneNotSupportedException, when it needs to handle the failures of clones.

However, when I start to call queryparser, I find it does not hide CloneNotSupportedException. As a result, my code fails to catch failed clones when calling queryparser.

Will lucene fix the problem? If not, I will have to update all my handling code.

### Version and environment details

_No response_

Contributor guide

Open the contributing guide

Research direction

Start by reproducing a clone failure through queryparser and compare its exception behavior with CharArrayIterator, whose clone() example is included in the report. Trace the queryparser clone paths and identify the current exception boundary. Done means clone failures have consistent, documented handling and a regression test covers the behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
search
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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